What’s Vulnerable › Vulnerabilities

CVE-2021-28130

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-09-24 · updated 2026-06-17
• Weakness: CWE-427

Description

Dr.Web Firewall 12.5.2.4160 on Windows incorrectly restricts applications signed by Dr.Web. A DLL for a custom payload within a legitimate binary (e.g., frwl_svc.exe) bypasses firewall filters.

Affected products

• Drweb Security Space: 12.5.2.4160

References

• https://habr.com/ru/company/pm/blog/579328/
• https://news.drweb.ru/show/?i=14180&lng=ru
• https://habr.com/ru/company/pm/blog/579328/
• https://news.drweb.ru/show/?i=14180&lng=ru

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